{
  "manageEntity": {
    "action": "Save",
    "entityId": "163004874",
    "entityType": "Track",
    "nonce": "1794233286287489843",
    "signature": "0x6746ebf3aeef00b1f879c0d94b78a59eaa4d0fdffa4106b82103375256958ada434a02f2ac954a38dbefbca4611b2e8b37c70109fe856798431fa7b6edbf74ee1b",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}